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Cysteine Supplies the reactive thiol group central to antioxidant activity Glutamic acid Structural amino acid in the tripeptide Glycine Completes the tripeptide structure Understand the science

Ling Yin, [email protected] These authors have contributed equally to this work and share first authorship Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

This naturally occurring peptide complex plays a vital role in collagen synthesis, wound healing, and anti-aging processes

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NAC is often preferred over standard cysteine in supplements because it is more stable